Apparatus for rectifying petroleum



(No Model.)

L. DAUL.

APPARATUS FOR RBGTIFYING PETROLEUM. f

No. 253,284. Patented May 23, 1882.

N, PiTEns, Pimm-Limugmpher. Washmgmn. l1 C,

TTE'D STATES LOUIS DAUL, OF BUFFALO,

PATENT OFFICE.

NEW YORK, Ass'tenon 0E ONE-HALETO CHARLES E. RITTER, OE SAME PLAGE.

SPECIFICATION forming' part of Letters Patent No. 258,284, dated May 23, 1882, l Application tiled January 20, 1882. (No model.) n

Tov all whom it may concern Be it known that I, LOUIS DAUL, a citizen of the United States,residing at Buffalo, iu the county of Erie and State of New York, have made certain Improvements in Apparatus for Rectitying Petroleum, of which the following is a'specification. a

This invention relates to improvements in the construction of the still, the rectifier, and purifier, by which au improved effect is obtained in all these in reotifying crude petroleum into a pure white oil, as hereinafter fully explained.

In the drawing the figure is a vertical section of the still, rectifier, and purifier. i

A is a still, in which'the crude petroleum is put; B, the column or rectier, situated above the still, and receiving the oil-vapor therefrom, and which after rectiflcation, goes into the puritier C.

The first operation is to work out the gasoline and naphtha in the usual manner, which, after going through the rectifier and purifier, passes out of the latter by a pipe, zr, into a small condenser, especially for naphtha and gasoline, the heavy parts returning to the still A by a return-pipe and the oil going direct to the water-box. These parts are not shown, not having any particular bearing on the invention. After the gasoline and naphtha are worked outthe rectification of the oil in vapor in still A commences. It first passes into the chamber D through openings or pipes a a ain the bottom thereof. This chamber or box is of metal, and at or near the top of the still, or forms part thereof. Into this chamber is set a perforated steampipe, b, bringing direct steam from the boiler E. This steam acts instantly on the vapor therein, cutting therefrom the heaviestpart-a sort of fine coke-also paraftine, tarry and coloring matter, allot' which drop to the bottom of the box D, and thence down through thepipe c `to the bottom of the still, where it remains, forming a sediment Vwhich is not forced up again into the chamber D. This steam-pipe inthe chamber D in the still is an important improvement, as it prevents to a very great extent the coke, tarry parts, &c., from getting into the rectifier B and blocking up the plates c e e, pipes d, and cups d therein, as in the usualconstruction, besides ing of tar, paraftine, coke, Sac., in the vapor,

which drops on and through the perforated plates e e c, that on the upper one returning by its pipe d into its cup d', which overflows, and so on to the next until it reaches the bot tom of the rectifier B, and thence through pipe j to the bottom of the still A. These coils g g g are about four inches below each lplate c, and the water musthave acertain temperature, according to the gravity ot' the oil,\vhich runs from 600 to 400 Baume. Therefore the hot water must have a temperature of from 850 to 2000 Fahrenheit. Theheaviertheoilthewarmer the water in the coils g must be. This gives a double rectication in the rectitier-tirst, as is usual, by the perforated plates e c, next by condensation by the coils of hot water.

I am aware that steam in pipes has been introduced trito rectitiers; but this merely aided in boiling the vapor, and does not worl: satisfactorily.

Each coil under each plate is connected to a union-pipe, h, outside the rectifier, and has a cock to shut orf the water in any of the coils, and a cock, 7s, near the tank Gr is to shut oif the water-supply entirely when desired to run gasoline through the rectier. The water in the tank G is'inade and kept hot by a steam` pipe, Z,tapped into the main steam-pipe fr, leading 4from boiler E. The lighter parts in vapor, after passing through the rectifier B, go out through the dome by apipe,m, direct into the purilier C, which is a separate device, being a tight metal box having near the top a single perforated plate, n. The feed-pipe m comes in near the bottom, as shown, and just below this is situated a steam perforated pipe, p, receiving direct steam from the pipe r from which condenses a portion of the vapor. This purifier thus gives three puriteations, viz: rst, by the direct steam acting on the vapor as it enters; next, through the perforated plate n; and, finally, by the steam-.worm u. The steam in said coil is received bypassing through a pipe which taps pipe r. VVhatis condensed by this coil u falls to the bottom through pipe w and ont at pipes back to the still A, the purified vapor passing out at top of purifier O by pipe fr to the usual water-box, where the result is -a pure white oil.

By-myproeess all the Crude oil good for anything is utilized, leaving but little residuum to -be drawn oft'. The steam-pipe bin chamber D aids this greatly, as it gives therein a primary and strong aetion on the oil and prevents clogging the plates or cups and pipes of Vthe rectier, as before explained.

I claimeases@ 1. 1n an apparatus for rectifying crude petroleum, in combination with still A and-rectier B, the separating-chamber D at the top of said still, provided with openings a a aand fff, the steam-pipe b, and discharge-pipe c, all arranged and operating substantially as speeied. v

2. In an apparatus for reetifying petroleum, in combination with the main portion or walls, the perforated plates e e e, pipes d, and cup d', the coils or worms g g g, situated just beneath plates e, and the hot-water tank G, and pipe connecting the worms with such tanks, all substantially as specified.

3. In an apparatus for reetifying petroleum, the purifier U, provided with pipes p and u, and perforated plate n, in combination with the steam-generator and connecting-pipe, as described, a distillationvchamber, and a pipe connecting the still and purifier, said connecting-pipe entering the purifier above the pipe p and below the perforated plate, all substantially as and for the purpose specified.

In Witness whereof I have hereunto signed my name in the presence of two subscribing Witnesses. l

LOUIS DAUL. Witnesses:

J. R. DRAKE, T. H. PARsoNs. 

